I've been using WunderStation. We have an old iPad that I use as a weather station monitor, as the iPad is too old to receive any new updates, system or apps. I can't receive the new WunderStation update, so it's still using the old version of that app. It works great, as everything is in real time with Wunderground/my Davis weather station. We just keep it plugged in and the iPad is on a wall, always on and always showing the current conditions. The old version of WunderStation will shutdown from time to time, but if your iOS device is new enough, I believe the updated version of WunderStation fixed that problem. Give it a try!!